Erlang Progress Bar 1 (Default branch)

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etop

etop(3erl)						     Erlang Module Definition							etop(3erl)

NAME

       etop - Erlang Top is a tool for presenting information about erlang processes similar to the information presented by "top" in UNIX.

DESCRIPTION

       etop  should  be started with the provided scripts etop and getop for text based and graphical presentation respectively. This will start a
       hidden erlang node which connects to the node to be measured. The measured node is given with the -node option. If the measured node has  a
       different  cookie  than	the  default  cookie for the user who invokes the script, the cookie must be explicitly given witht the -setcookie
       option.

       Under Windows the batch files etop.bat and getop.bat can be used.

       The following configuration parameters exist for the etop tool. When executing the etop or getop scripts, these parameters can be given	as
       command line options, e.g. getop -node testnode@myhost -setcookie MyCookie .

	 node :
	   The measured node.
	   Value: atom()
	   Mandatory

	 setcookie :
	   Cookie to use for the etop node - must be the same as the cookie on the measured node.
	   Value: atom()

	 lines :
	   Number of lines (processes) to display.
	   Value: integer()
	   Default: 10

	 interval :
	   The time interval (in seconds) between each update of the display.
	   Value: integer()
	   Default: 5

	 accumulate :
	   If true the execution time and reductions are accumulated.
	   Value: boolean()
	   Default: false

	 sort :
	   Identifies what information to sort by.
	   Value: runtime | reductions | memory | msg_q
	   Default: runtime ( reductions if tracing=off )

	 tracing :
	   etop  uses  the  erlang  trace  facility, and thus no other tracing is possible on the measured node while etop is running, unless this
	   option is set to off . Also helpful if the etop tracing causes too high load on the measured node. With tracing  off,  runtime  is  not
	   measured.
	   Value: on | off
	   Default: on

       All  interaction  with  etop when running the graphical presentation should happen via the menus. For the text based presentation the func-
       tions described below can be used.

       See the user's guide for more information about the etop tool.

EXPORTS

       config(Key,Value) -> Result

	      Types  Result = ok | {error,Reason}
		     Key = lines | interval | accumulate | sort
		     Value = term()

	      This function is used to change the tool's configuration parameters during runtime. The table above indicates the allowed values for
	      each parameter.

       dump(File) -> Result

	      Types  Result = ok | {error,Reason}
		     File = string()

	      This function dumps the current display to a text file.

       stop() -> stop

	      This function terminates etop .

Ericsson AB							  observer 0.9.9							etop(3erl)

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